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Designed for big sound in a small package. The SUMO headphones let you rock out anywhere from the subway to the studio.
FEATURES
- Engineered to deliver the highest-quality listening experience from your Apple iPod®, iPhone®, BlackBerry®, or other mp3 player, mobile phone or music device.
- Built-in microphone for use with iPhone®, BlackBerry® and other mobile phones.
- Includes 3 different ear gel sizes.
TECHNICAL SPECIFICATIONS
- Driver Diameter: 10mm
- Impedance: 16
- Frequency Response: 20-20KHz
- Sensitivity (S.P.L.): 92±3dB (at 1KHz)
- Input Plug Diameter: 3.5mm iPhone®
Product Code: RB-255228 | 
